Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
quang chat » quang chan, quang phat, quang cao
doi chieu » doc hieu, doi chi, ho chieu
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
quang cua » quan cua, quang tuan, quang huy
cong dan » cong san, cong tan, huong dan
chan ban » can ban, chat ban, chan doan
chan nan » chan nhan, chang nang, chan doan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - hanh tinh ((quang chat) or (quang cua)) cong dan ((chan ban) OR (chan nan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tinh ((quang chat) OR (quang cua)) cong dan ((chan ban) OR (chan nan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh tinh ((quang chat) or (quang cua)) cong dan ((chan ban) OR (chan nan))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tinh ((quang chat) or (quang cua)) cong dan ((chan ban) OR (chan nan))*.